Generic term for measuring time between user creating a listing and removing that listing?

I am measuring the time between users creating a listing and deactivating a listing to A/B test and make inferences around success (for some apps, including the one I'm working on, a shorter listing duration is a hint of greater success).

I am not sure of the appropriate jargon/terminology for the period of time between a user creating a listing and the time that listing is deactivated/removed?

Currently, I am calling it 'listing duration', or 'days online', but I made these up to describe the metric - I hope to understand if there is a more generic term/metric used by UX professionals?